Coaxial connector



Sept. l, 1964 v. coLussl 3,147,057

x COAXIAI.. CONNECTOR Orlgnal Flled Jan. 21, 1960 27A r 30 35 30A ZZA M Av 22 7// K ,l J 26A 0 LZOA 29 FIG. 1

F IG. 2

' I`\\\\\\\ l V 'HCL 3 VALENTINO cDLussl ATTORNEY 3,147,057 COAXIAL CONNECTOR Valentino Colussi, Walled Lake, Mich., assignor to The ABendix Corporation, a corporation of Delaware Continuation of application Ser. No. 3,963, Jan. 21, 1960. This application Sept. 10, 1962, Ser. No. 223,579

7 Claims. (Cl. 339-89) v This invention pertains to a coaxial cable connector having good electrical characteristics and beingv easy to assemble and which can be easily disconnected. This s a continuation of my copending application Serial No.

3,963, tiled January 21, 1960, entitled Coaxial Con-v. t

nector, now abandoned. n

It is an object of this invention to provide a coaxial cable connector adapted to connect the center conductors and outer conductors of the free ends of two cable segments which have the outer conductors and insulation stripped away from the center conductors, which includes: end caps being internally threaded at one end and having an inwardly extending flange at the other'endv with an end cap being placed lover the outer conductor 0f each of the free ends lianged end first; a retainer ring adapted to engage the inwardly extending ilange of the end caps, being soldered to the outer conductor of each cable end; an externally threaded sleeve containing a Teflon positioning sleeve and a sleeve having spring members at each end for engaging the center conductorssaid threaded sleeve being in threaded engagement with each of the end caps which are tightened on the sleeve so that the inwardlyextending lianges of the end caps urge the retaining rings toward one another and against the ends of the threaded sleeve, positioning sleeve to firmly hold the connection.

This land other objects and inventions will become more apparent when a preferred embodiment ofy this invention is considered in connection with the drawings in which:

FIGURE 1 is a cross section of an embodiment of this invention connecting two coaxial cables;

FIGURE 2 is an end view of the connector; and

FIGURE 3 is a sectioned view of the spring sleeve which connects the two center conductors.

In FIGURE 1 is shown the free ends of two coaxial cables 20, 20A, having, respectively, center conductors 22, 22A, insulation 24, 24A, and outer conductors 26, 26A. The insulation 24, 24A and outer conductors 26, 26A are stripped away in this embodiment for .100" for an outer conductor diameter of .140. Soldered at 29, 29A to outer conductors 26, 26A, respectively, are rings 28, 28A, which have shoulders 27, 27A, respectively, formed intermediately thereof. Rings 28, 28A are urged together by the inwardly extending flanges 30, 30A, lof end caps 32, 32A which are threadedly engaged with an externally threaded sleeve 34, the ends of which are tightened against shoulders 27, 27A.

Located inside sleeye 34 is a Telion positioning sleeve 36 in which is a spring sleeve 38 having a plurality ot lingers 40 at one end and lingers 40A at Athe other, as shown in FIGURE 3. In the relaxed position the lingers 40, 40A of spring sleeve 38 come together at their outer ends and, therefore, when the center conductors 22, 22A are inserted in the ends ot'` the sleeve 38, the linger-S40, 40A, are separated and exert a spring pressure on the 3,47,051 Patented Sept. l, 1.964

ice'

conductor 22. This insures a good electrical connection and serves to clean the conductors as the sleeve slides over the conductor ends. Retainer rings 28, 28A, end

caps 30, 30A, and sleeves 34, 38 are preferably of brass Assembly lIn assembling the preferred embodiment connector of l this invention, the end caps 30, 30A are iirst placed over the stripped ends of coaxial cables 20, 20A and slid along the outer conductors 26, 26A, so that retaining rings 28, 28A may be placed respectively over outer conductors 26, 26A, and soldered at 29, 29A. Then sleeve 34containing insulation 36 and spring sleeve 38, is inserted over the inner portion of the retaining ring 28 until the respective sleeve end abuts shoulder 27 of ring 28 with fingers 40 sliding over the center conductor 42. Then the other conductor is inserted into sleeve 34 until the shoulder 27A of retaining ring 28A abuts the other end of sleeve 34, at which time the center conductor 22A will be inserted in the lingers 40A of spring sleeve 38. The end caps 30, 30A are now moved along the outer conductors 26, 26A, threadedly engaged with sleeve 34 and tightened on the sleeve urging the retainer rings 28, 28A toward one another against the ends of sleeve 34 to insure a rm,secure connection.

Although this invention has been disclosed and illus-.-v

trated with reference to particular applications, the principles involved are susceptible of numerous other applications which will be apparent to persons skilled in the art. The invention is, therefore, to be limited only as indicated by the scope of the appended claims.

Having thus described my invention, Iclaim: l. A connector for connecting the free ends of two coaxial cables having their outer conductor and insulation stripped away to expose a predetermined length of the inner conductor comprising two internally threaded end caps, one end cap rotatably mounted on one cable, the other end cap rotatably mounted on the other cable, a rst ring being bonded to the outer conductor of said one cable, a second ring being bonded to the outer conductor of said other cable, an externallythreaded sleeve which is threadedly engageable with both of said threaded end caps, rigid tubular insulating means closely fitting within said sleeve intermediate the ends thereof, a double-ended socket contact wholly within and supported by said sleeve for receiving and electrically contacting the exposed lengths of the inner conductors of saidv end cap for rotatably engaging said second ring, the

adjacent ends of said rings and cables slidably extending into the 'ends l of said sleeve and being urged toward each other by said engaging means as said end caps are screwed on said sleeve until said inner conductors make electrical contact with said socket contact and said cainner conductor, a metallic ring surrounding and se-4 cured to the outer conductor of said cable, said ring terminating llush with the end of said outer conductorv of Vthe cable and having a portion slidably telescopicallyreceived in one end of said casing member, and a nut cooperably associated with said casing member and ring for holding the ring and cable in telescopic relation with said casing member with the ends of said insulating means and said cable insulation in abutting relation.

3. The combination defined in claim 2, lwherein said ring has an external shoulder cooperable with the end of said casing member to limit movement of said ring'and cable into the casing member after said inner conductor engages said socket Contact.r

4. The combination defined in claim 2 further comprising means for limiting axial movement of said insulating means into said casing member toward the other end of the latter.

5. The combination defined in claim 4, wherein said last-named means comprises a second coaxial cable, ring and nut in combination with each other and with the other end of said casing member in the same manner as said first-named cable, ring and nut are combined with each other and with said one end of the casing member.

6. The combination defined in claim 1, wherein said insulating means is a rigid unitary tube slidably received in said casing member and held therein by said nut in end-to-end abutment with said cable and ring.

7. The combination defined in claim 1, wherein the outer diameter of said socket contact is greater than the diameter of said inner conductor of the cable and the inner diameter of said casing member surrounding said insulating means is greater than the inner diameter of said outer conductor of the cable;

References Cited in the tile of this patent UNITED STATES PATENTS 1,930,322 Paulson Oct. 10, 1933 2,153,527 Battermann Apr. 4, `1939 l2,209,152 Daniels July 23, 1940;, 2,296,766 Bruno Sept. 22, 1942 2,449,073 Johannesen Sept. 14, 1948 -2,449,983 Devol Sept. 28, 1948 2,657,252 Mildner et al. Oct. 27, 1953 2,839,595 Felts et al. June 17. 1958 3,003,135 Purinton Oct. 3, 1961 3,040,288 Edlen et al.v June 19, 1962 A FOREIGN PATENTS 743.294 Great Britain Jan. 11, 1956 798,914 Great Britain July 30, 1958 UNITED STATES, PATENT OFFICE CERTIFICATEOF CORRECT-EON Patent No, enanos? i 4'September' 1k. 1964f 'l l v v Valentino Colusvsi v -lt '1s hereby certified thaterior-apoears 'in the abovel numbered.pet-ev I ent requiring. correction andtht vsaid.v Letters Patent should rea'clas corrected below. a 'Y l f g Column 2I line '37Y fbegfining. with '.A connector" strike out all tol and including "-in-sulating means."', in column r3, i f

' line 3 and 'insert insteaf-idy they.folloxfving:

A' connector for connecting' the free ends of two lcoaxial cables having their outer conductor and insulation conductorl comprising stripped away to vexpose-av'predetermined. length of the inner: A

' two internallyfthrfe'adedend caps;l

one end cap rotata'hllygmounted on one calole,l I v the other end cap? rotatablym'ounted on the other cable,` l a first ringfbeing bonded .to theouter conductor of said Ione cable y 'l v 1 f i `a second ring beingbonded to the 'outer 'conductor lof sai-d other cable,1 l v l 7 f g an externally-threaded"sleeve which is threade'dly f engageable withboth of said threaded end caps,

l cables, l

rigid tubular insulating means closelyl fitting within J said sleeve intermediate thefends' thereof,

.v n a double-ended socketcontact wholly *within and supported by said sleeve forl yreceiving -and electrically contacting thev exposed lengths of the inner' 4coxmlulcto'lrs of 4said: I

.first engaging means being vconnectedlto one end cap for` rotatablypengaging 'said first ring,l l 'l l y second engaging means being connected to thev other end capl forv rotatably engaging said second ring l the a'drjacent'ends of saidrings and cablessl'idably Attesting Officer extending into` the l ends of l"said slyfefvwazq,being l each otherl by lsrxol engaging means assa;d e.ndl calpz'syz,am;Y Sfewwed Y;

on said sleeve untilr s'aidjinner conduc"torsgfprxakef5 elec.

signed and'sealed this :19th

ERNEST'- w swlbER Y. l

m S51 le Pa. 

2. THE COMBINATION COMPRISING A COAXIAL CABLE HAVING ITS INNER CONDUCTOR EXPOSED BEYOND THE END OF ITS OUTER CONDUCTOR AND THE CABLE INSULATION THEREBETWEEN, A TUBULAR METALLIC CASING MEMBER, TUBULAR INSULATING MEANS DISPOSED WITHIN SAID MEMBER INTERMEDIATE THE ENDS THEREOF, A SOCKET CONTACT MOUNTED WHOLLY WITHIN SAID INSULATING MEANS AND ADAPTED TO RECEIVE THE EXPOSED END OF SAID INNER CONDUCTOR, A METALLIC RING SURROUNDING AND SECURED TO THE OUTER CONDUCTOR OF SAID CABLE, SAID RING TERMINATING FLUSH WITH THE END OF SAID OUTER CONDUCTOR OF THE CABLE AND HAVING A PORTION SLIDABLY TELESCOPICALLY RECEIVED IN ONE END OF SAID CASING MEMBER, AND A NUT COOPERABLY ASSOCIATED WITH SAID CASING MEMBER AND RING FOR HOLDING THE RING AND CABLE IN TELESCOPIC RELATION WITH SAID CASING MEMBER WITH THE ENDS OF SAID INSULATING MEANS AND SAID CABLE INSULATION IN ABUTTING RELATION. 